公开(公告)号：US20160148350A1

公开(公告)日：2016-05-26

申请号：US14904429

申请日：2014-05-30

Applicant: FOUNDATION OF SOONGSIL UNIVERSITY-INDUSTRY COOPERATION

Inventor： Mincheol HONG ,  Tuan anh NGUYEN ,  Jonggeun OH

IPC: G06T5/00 ,  G06T7/00

CPC classification number: G06T5/002 ,  G06T7/00 ,  G06T2207/20012 ,  G06T2207/20024 ,  G06T2207/20076 ,  H04N5/21 ,  H04N5/213

Abstract: An image processing system includes an a noise detection unit that extracts a local statistical characteristic of a predicted original image according to a local statistical characteristic of an observed image and a local statistical characteristic of a predicted noise image, sets a flag level indicating a distortion state for each of pixels of the observed image according to the local statistical characteristic of the predicted original image, zones the observed image through a filter window, determines distortion states of adjacent pixels, corrects the flag level, and detects noise, and a noise removal unit that adaptively sets a filter size according to the corrected flag level and removes the noise, when the corrected flag level is determined through the noise detection unit, and therefore it is possible to implement adaptive noise detection and removal techniques of a distorted image damaged by noise, and detect a contour to the corresponding pixels into undistorted pixels.

Abstract translation: 一种图像处理系统包括噪声检测单元，其根据观察图像的局部统计特征和预测的噪声图像的局部统计特性提取预测原始图像的局部统计特性，设置指示失真状态的标志电平 对于根据预测的原始图像的局部统计特征的观察图像的每个像素，通过滤波器窗口对观察到的图像进行分区，确定相邻像素的失真状态，校正标志电平并检测噪声，以及噪声去除单元 当通过噪声检测单元确定校正的标志电平时，根据校正的标志电平自适应地设置滤波器尺寸并消除噪声，因此可以实现由噪声损坏的失真图像的自适应噪声检测和去除技术 并且将对应的像素的轮廓检测为未失真的像素。